You are trying to make a purchase on the App Store or Google Play, but your payment is declined or cannot be validated.
From our iPhone app
In accordance with our Terms of Service, we remind you that if you make your purchase from the iPhone app, any complaints or requests relating to payments must be addressed directly to Apple Inc.
For more information, please refer to this article on the Apple support platform.
From our Android app
In accordance with our Terms of Service, we remind you that if you make your purchase from the Android app, any complaints or requests relating to payments must be addressed directly to Google LLC.
For more information, please refer directly to this article in the Google Play Help Center.